Memory used is a delta between memuse at the start of the time and the
memuse at the end, thus it is signed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19904 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/Timer.cpp b/lib/Support/Timer.cpp
index bea8164..3713f7f 100644
--- a/lib/Support/Timer.cpp
+++ b/lib/Support/Timer.cpp
@@ -19,7 +19,6 @@
 #include <functional>
 #include <iostream>
 #include <map>
-
 using namespace llvm;
 
 // GetLibSupportInfoOutputFile - Return a file stream to print our output on.
@@ -101,7 +100,7 @@
 
 struct TimeRecord {
   double Elapsed, UserTime, SystemTime;
-  size_t MemUsed;
+  ssize_t MemUsed;
 };
 
 static TimeRecord getTimeRecord(bool Start) {
@@ -111,7 +110,7 @@
   sys::TimeValue user(0,0);
   sys::TimeValue sys(0,0);
 
-  size_t MemUsed = 0;
+  ssize_t MemUsed = 0;
   if (Start) {
     sys::Process::GetTimeUsage(now,user,sys);
     MemUsed = getMemUsage();